Offshore StaysSurf San Sebastián in May
Surfing San Sebastián in May: outside the main surf season, air around 15°C, sea around 16°C, 2.6 mm of rain a day on average. Wetsuit: a 4/3mm full wetsuit.
Surf season
Off-season
Air temperature
15°C
Sea temperature
16°C
Rain
2.6 mm/day
Wind
13 km/h avg
Average wave height
1.2 m (4 ft)
Big days (top 10%)
1.9 m (6 ft)+
Swell period
10 s
Main swell direction
From NW (315°)
What to wear: with the sea around 16°C in May, expect a 4/3mm full wetsuit.
Surf size in San Sebastián in May
Offshore of San Sebastián, waves in May average 1.2 m (4 ft), below the year-round average of 1.5 m — the 9th biggest month of the year. One hour in ten is 1.9 m (6 ft) or bigger. The dominant swell runs at about 10 seconds from the NW.
These are open-ocean figures from 10 years of hourly wave data, not a beach forecast: a sheltered break will be smaller, an exposed reef or point can be bigger.
May in the context of San Sebastián's surf season
San Sebastián's main surf season runs March–April, September–November. May is outside it.
Frequently asked questions
- Is May a good month to surf San Sebastián?
- May is outside San Sebastián's main surf season (March–April, September–November), so surf is less reliable, though it can still work on the right day.
- How warm is the sea in San Sebastián in May?
- About 16°C on average, which calls for a 4/3mm full wetsuit.
- What is the weather like in San Sebastián in May?
- Air temperature averages 15°C, with about 2.6 mm of rain per day and average winds of 13 km/h.